bought one from crutchfield for JVC stereo so i could play my mp3 player through my car stereo.I did not have a auxilliary plug in on the front face ofmy unit cuz i bought it 2 years ago.all i had was my rca plug on the back for a cd changeror sirius/xm hook-up.works great and it cost me $45 with shipping. totally worth it. :- )